IMAGE COMPRESSION APPARATUS, IMAGE EXPANSION APPARATUS, AND IMAGE TRANSFER SYSTEM

摘要

An image compression apparatus according to an embodiment includes a slope determiner and a compressor. The slope determiner determines slopes of linear lines calculated from a reference component and non-reference components. The reference component is one of a plurality of image components forming pixels included in an input image data. The non-reference components are other image components. The compressor generates a compressed image data in which a value of the reference component of each of the pixels in the input image data, the slopes, and representative values of the non-reference components are compressed.

主权项

1. An image compression apparatus comprising:
a slope determiner determining slopes of linear lines calculated from a reference component and non-reference components, the reference component being one of a plurality of image components forming pixels included in an input image data, and the non-reference components being other image components; and a compressor generating a compressed image data in which a value of the reference component of each of the pixels in the input image data, the slopes, and representative values of the non-reference components are compressed.